diff --git a/pyproject.toml b/pyproject.toml
index 7198098..547b8e7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -102,7 +102,7 @@ optional-dependencies.develop = [
   "mypy<1.11",
   "poethepoet<0.27",
   "pyproject-fmt<2.2",
-  "ruff<0.5",
+  "ruff<0.6",
   "validate-pyproject<0.19",
 ]
 optional-dependencies.release = [